JPH0975374A - Screw driver and screw fastening supporter - Google Patents

Screw driver and screw fastening supporter

Info

Publication number
JPH0975374A
JPH0975374A JP7232828A JP23282895A JPH0975374A JP H0975374 A JPH0975374 A JP H0975374A JP 7232828 A JP7232828 A JP 7232828A JP 23282895 A JP23282895 A JP 23282895A JP H0975374 A JPH0975374 A JP H0975374A
Authority
JP
Japan
Prior art keywords
screw
driver
head
tip
tightening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP7232828A
Other languages
Japanese (ja)
Other versions
JP2897116B2 (en
Inventor
Shosaku Kawada
庄作 川田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NAKANISHI KK
Original Assignee
NAKANISHI KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NAKANISHI KK filed Critical NAKANISHI KK
Priority to JP7232828A priority Critical patent/JP2897116B2/en
Publication of JPH0975374A publication Critical patent/JPH0975374A/en
Application granted granted Critical
Publication of JP2897116B2 publication Critical patent/JP2897116B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/8875—Screwdrivers, spanners or wrenches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/0007—Connections or joints between tool parts
    • B25B23/0035—Connection means between socket or screwdriver bit and tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/02—Arrangements for handling screws or nuts
    • B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
    • B25B23/10—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/02—Arrangements for handling screws or nuts
    • B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
    • B25B23/10—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means
    • B25B23/101—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means for hand-driven screw-drivers

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Dental Prosthetics (AREA)
  • Surgical Instruments (AREA)

Abstract

PROBLEM TO BE SOLVED: To fasten a screw from the inside of mouth even at a narrow lesion such as inside the mouth and to surely prevent the drop of the screw with one hand without using any forceps. SOLUTION: Concerning a screw driver 10 for fastening a screw 30 for fixing an osteo synthesis plate through a driver head 20, this screw driver is provided with a supporting member 1 for preventing the drop of the screw 30 by supporting a head 31 of the screw 30 from the downside when the head 31 is engaged with a top end part 21 of the driver head 20. Then, a screwing supporter 1 freely attachably and detachable has a mounting part 2 for freely attachably and detachably fitting the supporter 1 at a prescribed section of the screw driver 10 and a supporting part 3 for supporting the head 31 from the downside when the head 31 of the screw 30 is engaged with the top end part 21 of the driver head 20.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明が属する技術分野】本発明はスクリュードライバ
ー及びスクリュー締付補助具に関し、更に詳細には、一
般整形外科の骨接合手術や歯科口腔外科のインプラント
等において、骨接合プレートの固定に供するスクリュー
を締め付けるために用いるスクリュードライバーと、か
ようなスクリュードライバーに取り付けてスクリューの
締め付けを補助するスクリュー締付補助具に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screw driver and a screw tightening aid, and more particularly, to a screw used for fixing an osteosynthesis plate in osteosynthesis of general orthopedic surgery or implant of dental and oral surgery. The present invention relates to a screw driver used for tightening and a screw tightening auxiliary tool that is attached to such a screw driver to assist tightening of the screw.

【０００２】[0002]

【従来の技術】骨折部を骨接合プレートで整復固定する
場合、従来から、ハンドピースのヘッドにスクリューを
回すためのドライバー先を取り付け、スクリューを鉗子
で把持し、スクリューの頭部における多角形部又は
（＋）若しくは（−）状のスリットにドライバー先の先
端を係合させ、電動モーター又は手動式の駆動部でドラ
イバー先を介してスクリューを回転させることによっ
て、骨折部に骨接合プレートをスクリューで締め付けて
固定している。2. Description of the Related Art Conventionally, when reducing and fixing a fractured portion with an osteosynthesis plate, a driver tip for turning the screw is attached to the head of the handpiece, the screw is grasped by forceps, and the polygonal portion at the head of the screw is held. Alternatively, by screwing the tip of the driver tip into the (+) or (-) slit and rotating the screw through the driver tip with the electric motor or the manual drive section, the osteosynthesis plate is screwed to the fractured part. It is fixed by tightening with.

【０００３】[0003]

【発明が解決しようとする課題】しかしながら、従来の
方法においては、頬側部等の術野の狭い患部の場合、ハ
ンドピースと鉗子の両方を口腔内から挿入して手術を行
うことが困難なため、頬部に穴を開け、外側からスクリ
ューを締め付ける等しているが、この場合、患者の頬部
に傷が残るという審美的な問題がある。However, in the conventional method, it is difficult to perform an operation by inserting both the handpiece and the forceps from the oral cavity in the case of an affected area having a narrow surgical field such as the buccal side. Therefore, a hole is made in the cheek and the screw is tightened from the outside, but in this case, there is an aesthetic problem that the cheek of the patient remains scratched.

【０００４】また、スクリュー頭部とスクリュー先の先
端との係合が解け易く、誤ってスクリューを落下させた
場合、術時間が長引くばかりか、スクリューが患者の食
道や気管へと進入するような危険もある。Further, the engagement between the screw head and the tip of the screw tip is easily released, and if the screw is accidentally dropped, not only the operation time will be prolonged, but also the screw may enter the esophagus or trachea of the patient. There is also a danger.

【０００５】更に、ハンドピース及び鉗子の両方を使用
するため、術者の両手が塞がり、片手で済む場合に比べ
手術が面倒になるという不都合があった。Further, since both the handpiece and the forceps are used, there is a disadvantage that the operator's both hands are closed and the operation is more complicated than the case where only one hand is required.

【０００６】本発明は、以上のような問題点に鑑みてな
されたものであり、その目的は、口腔内等の狭い患部に
おいても口腔内からスクリューの締付け操作を行うこと
ができ、鉗子を用いることなく片手でスクリューの落下
を確実に防止することができるスクリュードライバー及
びスクリュー締付補助具を提供することにある。The present invention has been made in view of the above problems, and an object thereof is to enable tightening operation of a screw from the oral cavity even in a narrow affected area such as the oral cavity and use forceps. An object of the present invention is to provide a screw driver and a screw tightening auxiliary tool that can reliably prevent the screw from falling without using one hand.

【０００７】[0007]

【課題を解決するための手段】本発明に係るスクリュー
ドライバーは、骨接合プレートの固定に供するスクリュ
ーをドライバー先を介して締め付けるスクリュードライ
バーに対し、上記目的を達成するための手段として、前
記スクリューの頭部と前記ドライバー先の先端部とを係
合させた際、前記頭部を下方から支持して当該スクリュ
ーの落下を防止する補助部材を付設したものである。Means for Solving the Problems A screwdriver according to the present invention is a screwdriver for tightening a screw used for fixing an osteosynthesis plate via a driver tip, and as a means for achieving the above object, the screwdriver When the head and the tip of the driver tip are engaged, an auxiliary member is provided to support the head from below and prevent the screw from falling.

【０００８】ここで、スクリュードライバーは、一般
に、ドライバー先やドリル先等の交換可能な工具のうち
ドライバー先を選択することによりスクリュードライバ
ーとして機能する歯科用又は外科用ハンドピースであ
る。なお、スクリュードライバー専用のハンドピースで
あってもよい。Here, the screw driver is generally a dental or surgical handpiece that functions as a screw driver by selecting a driver tip from replaceable tools such as a driver tip and a drill tip. It should be noted that a handpiece dedicated to a screw driver may be used.

【０００９】また、スクリューの頭部と前記ドライバー
先の先端部とを係合させたとは、スクリューの頭部に備
わる多角形部又は（＋）若しくは（−）のスリット対
し、ハンドピースに取り付けられたドライバー先の先端
部に備わる多角形めす型又は（＋）型若しくは（−）型
の凸部を係合させる趣旨である。The engagement of the screw head with the tip of the driver tip means that the screw head is attached to a polygonal part or a (+) or (-) slit provided on the handpiece. The purpose is to engage the polygonal female type or (+) type or (−) type convex portion provided at the tip of the driver tip.

【００１０】更に、スクリュー頭部を下方から支持して
当該スクリューの落下を防止する補助部材とは、一端が
スクリュー頭部を下方から支持する部位Ａとなり、他端
がハンドピース（本発明のスクリュードライバーに相当
する。）側に一体又は着脱可能に連結する部位Ｂとなる
部材であり、材質としては金属、樹脂等の弾性若しくは
可撓性を有するものが望ましいが、特にこれらに限定さ
れるものではない。Further, the auxiliary member that supports the screw head from below and prevents the screw from falling is one portion A that supports the screw head from below, and the other end is the handpiece (the screw of the present invention). It is a member that becomes a part B integrally or detachably connected to the () corresponding to the driver), and it is desirable that the material has elasticity or flexibility such as metal or resin, but is particularly limited to these. is not.

【００１１】上記部位Ａは、Ｕ字状やＣ字状を含む二又
フォーク形状のものであって、ハンドピースヘッドの軸
部（ドライバー先を受け入れるバーチューブ等）の下端
から所定の間隔を置いて軸部とほぼ同心の位置に来る。The above-mentioned part A has a fork shape including a U-shape and a C-shape, and is arranged at a predetermined distance from the lower end of the shaft portion (bar tube for receiving the driver tip) of the handpiece head. It comes to a position almost concentric with the shaft.

【００１２】本発明では、上記補助部材を着脱自在、即
ち、上記部位Ｂのハンドピースに対する連結の態様が一
体的なものではなく取付け取り外しが可能なものとする
ことができる。According to the present invention, the auxiliary member can be detachably attached, that is, the connection mode of the portion B to the handpiece is not integral but can be attached and detached.

【００１３】補助部材を着脱自在とする態様は、上記部
位Ｂの取付け取外しが比較的簡易なもの（イ）と多少手
間がかかるもの（ロ）とに分けられる。The manner in which the auxiliary member is detachable is divided into a relatively easy attachment / detachment of the part B (a) and a slightly laborious one (b).

【００１４】（イ）の具体的な手段としては、部位Ｂが
ハンドピースヘッドの一部やハンドピースネック（首）
の一部を把持するような態様を挙げることができる。As a concrete means of (a), the part B is a part of the handpiece head or the handpiece neck (neck).
There can be mentioned a mode in which a part of the above is grasped.

【００１５】（ロ）の具体的手段としては、部位Ｂがハ
ンドピースヘッドのキャップによって挟持されたり、部
位Ｂが小さなボルト等によってハンドピース側に固定さ
れるような態様を挙げることができる。As a concrete means of (b), there may be mentioned a mode in which the part B is clamped by the cap of the handpiece head, or the part B is fixed to the handpiece side by a small bolt or the like.

【００１６】なお、上記部位Ｂのハンドピースに対する
連結の態様が一体的なものである場合においても、補助
部材の材質をフレキシブルなものとする等により部位Ａ
の位置を微調整可能とすることが望ましい。Even when the above-mentioned part B is integrally connected to the handpiece, the part A is made flexible by making the material of the auxiliary member flexible.
It is desirable that the position of can be finely adjusted.

【００１７】本発明に係るスクリュー締付補助具は、骨
接合プレートの固定に供するスクリューをドライバー先
を介して締め付けるスクリュードライバーに用いるもの
であって、前記スクリュードライバーの所定部位に着脱
自在に取り付けるための装着部と、前記スクリューの頭
部と前記ドライバー先の先端部とを係合させた際、当該
頭部を下方から支持する支持部とを有することを特徴と
する。The screw tightening auxiliary tool according to the present invention is used for a screw driver for tightening a screw used for fixing an osteosynthesis plate through a driver tip, and is detachably attached to a predetermined portion of the screw driver. And a supporting portion that supports the head from below when the head of the screw and the tip of the driver tip are engaged.

【００１８】即ち、スクリュー締付補助具は、本発明の
スクリュードライバーにおける既述した着脱自在とされ
た補助部材に相当するものであり、補助具の装着部は上
記部位Ａに支持部が上記部位Ｂにそれぞれ対応する。That is, the screw tightening auxiliary tool corresponds to the above-mentioned detachable auxiliary member in the screw driver of the present invention, and the mounting part of the auxiliary tool is the above-mentioned part A and the supporting part is the above-mentioned part. Corresponds to B respectively.

【００１９】従って、スクリュードライバーの所定部位
とは、ハンドピースヘッドの一部やハンドピースネック
（首）の一部やヘッドのキャップで締め付ける部分その
他となる。Therefore, the predetermined portion of the screw driver is a part of the handpiece head, a part of the handpiece neck (neck), a part to be tightened with the cap of the head, or the like.

【００２０】なお、本発明のスクリュードライバー又は
本発明のスクリュー締付補助具が取り付けられたスクリ
ュードライバーは、スクリュー締付け過程における最終
段階には用いられない。The screw driver of the present invention or the screw driver to which the screw tightening auxiliary tool of the present invention is attached is not used in the final stage of the screw tightening process.

【００２１】[0021]

【実施例】以下、本発明の実施例を添付図面に基づいて
説明する。Embodiments of the present invention will be described below with reference to the accompanying drawings.

【００２２】図１は、本発明に係るスクリュー締付補助
具１を示す斜視図であり、該図のＡ方向から見た平面が
図２にて示される。なお、スクリュー締付補助具１は、
本発明に係るスクリュードライバーにおける補助部材に
相当する。FIG. 1 is a perspective view showing a screw tightening auxiliary tool 1 according to the present invention, and a plan view seen from the direction A in the figure is shown in FIG. The screw tightening aid 1 is
It corresponds to an auxiliary member in the screw driver according to the present invention.

【００２３】補助具１は、工具にドライバー先２０（図
５参照）を選ぶことによってスクリュードライバーとし
て機能するハンドピース１０の所定部位としての、ヘッ
ド１０’の前端部１０”（図３参照）に取り付けるため
の装着部２と、ハンドピース１０の操作時にスクリュー
３０（図６参照）の頭部３１を下から支持させる支持部
３とからなる金物部材である。The auxiliary tool 1 is mounted on the front end portion 10 "(see FIG. 3) of the head 10 'as a predetermined portion of the handpiece 10 which functions as a screw driver by selecting a driver tip 20 (see FIG. 5) as a tool. It is a metal member including a mounting portion 2 for mounting and a support portion 3 for supporting a head 31 of a screw 30 (see FIG. 6) from below when the handpiece 10 is operated.

【００２４】装着部２は、水平断面コ字形の樋状となる
基部２”と、基部２”を挟んでほぼＣ字形状をなすよう
基部２”から左右（図２参照）へ各３片づつ突出する把
持片２’とからなり、図３に示すように、相対向する左
右の各把持片２’間の板ばね作用によってわん曲するヘ
ッド前端部１０”を着脱自在に把持することができる。The mounting portions 2 have a gutter-shaped base portion 2 "having a horizontal U-shaped cross section, and three pieces each from the base portion 2" to the left and right (see FIG. 2) so as to form a substantially C shape with the base portion 2 "sandwiched therebetween. As shown in FIG. 3, it is possible to detachably hold the head front end portion 10 ″ that is bent by the leaf spring action between the left and right holding pieces 2 ′ facing each other. .

【００２５】支持部３は、基部２”から下方へＬ字形状
に延在する連結片３”と、連結片３”の円形状に拡大し
た端部を二又に切り欠いたフォーク部３’とからなり、
装着部２をヘッド前端部１０”に装着した状態におい
て、図３に示すように、フォーク部３’がヘッド１０’
の軸、即ち、バーチューブ１１（図４参照）の下端に対
し若干間隔（ドライバー先２０のバーチューブ１１から
の突出高＋スクリュー頭部３１の厚さ）を置いてほぼ同
心の位置に来る。The supporting portion 3 has a connecting piece 3 "extending downwardly from the base portion 2" in an L shape, and a fork portion 3'in which a circularly enlarged end portion of the connecting piece 3 "is cut into two. Consists of
In the state where the mounting portion 2 is mounted on the front end portion 10 ″ of the head, as shown in FIG.
Of the bar tube 11, that is, the lower end of the bar tube 11 (see FIG. 4), is slightly concentric (protrusion height of the driver tip 20 from the bar tube 11 + thickness of the screw head 31) and comes to a substantially concentric position.

【００２６】以上のスクリュー締付補助具１が取り付け
られるハンドピース１０は、図４に示すように、ドライ
バー先２０をバーチューブ１１に受け入れ、電動モータ
ー又は手動式駆動部（図示せず）の回転をシャフト１４
及び歯車１３，１２等を介してバーチューブ１１に伝達
してドライバー先２０を低速（３〜５０回転／分にて調
節可能）にて回転させるものであり、ヘッド１０’はバ
ーチューブ１１の長さ（軸方向）が１０ｍｍ程度に小型
化されている。As shown in FIG. 4, the handpiece 10 to which the above-described screw tightening aid 1 is attached receives the driver tip 20 in the bar tube 11 and rotates an electric motor or a manual drive unit (not shown). The shaft 14
Also, the driver tip 20 is rotated at a low speed (adjustable at 3 to 50 rotations / minute) by transmitting it to the bar tube 11 via the gears 13, 12 and the like, and the head 10 ′ has a long length of the bar tube 11. The size (axial direction) is reduced to about 10 mm.

【００２７】ドライバー先２０としては、（−）スリッ
ト３１’を有するスクリュー３０（図６参照）を締め付
けるため、図４に示すように、先端部に（−）型の凸部
２１を備えるものを用いた。また、ドライバー先２０の
後端側には、バーチューブ１１の上端側の***部１１’
に係合させてドライバー先２０を自転不能とする切欠部
２２と、ピン１５’（図４参照）を中心にスライド回動
（水平面内）するラッチ板１５で係止され、ドライバー
先２０のバーチューブ１１からの抜脱を防止するラッチ
溝２３とが備わり、バーチューブ１１内に取り付けられ
た状態において、ドライバー先２０の先端側は、バーチ
ューブ１１の下端から外へ若干突出する（図７参照）。As the driver tip 20, for tightening the screw 30 (see FIG. 6) having the (-) slit 31 ', a tip having a (-) type convex portion 21 as shown in FIG. 4 is used. Using. Further, on the rear end side of the driver tip 20, a ridge 11 ′ on the upper end side of the bar tube 11 is provided.
The notch 22 that engages with the driver tip 20 to prevent the driver tip 20 from rotating, and the latch plate 15 that slides (in the horizontal plane) around the pin 15 '(see FIG. 4) is locked, and the bar of the driver tip 20 is locked. It has a latch groove 23 that prevents the tube 11 from being pulled out, and the tip side of the driver tip 20 slightly protrudes outward from the lower end of the bar tube 11 when mounted inside the bar tube 11 (see FIG. 7). ).

【００２８】スクリュー締付補助具１の使用に際して
は、まず、ドライバー先２０が、次いで、補助具１が既
述のようにハンドピースヘッド１０’に装着される。そ
の後、図７にて示すように、スクリュー頭部３１の
（−）スリット３１’とドライバー先２０の凸部２１と
を係合した後、補助具１でスクリュー３０を支持する。
即ち、フォーク部３がスクリュー頭部３１をドライバー
先２０との間で挟み付けるように装着部２の位置を微調
整する。これによって、スクリュー３０はヘッド１０’
から離脱することなく、この状態で口腔内等の患部に挿
入し、骨接合プレート（図示せず）を固定するためスク
リュー３０の締付け操作を実行する。When using the screw tightening auxiliary tool 1, first, the driver tip 20 and then the auxiliary tool 1 are mounted on the handpiece head 10 'as described above. Then, as shown in FIG. 7, after engaging the (−) slit 31 ′ of the screw head 31 and the convex portion 21 of the driver tip 20, the auxiliary tool 1 supports the screw 30.
That is, the position of the mounting portion 2 is finely adjusted so that the fork portion 3 sandwiches the screw head 31 with the driver tip 20. This causes the screw 30 to move to the head 10 '.
In this state, the screw 30 is inserted into a diseased part such as the inside of the mouth without being removed, and a tightening operation of the screw 30 is performed in order to fix an osteosynthesis plate (not shown).

【００２９】なお、スクリュー３０の締め付けにおける
最終段階は、フォーク部３が締付けの邪魔となるため、
補助具１を取り外したハンドピース１０又は補助具１を
備えていない別個のハンドピースが担当する。At the final stage of tightening the screw 30, since the fork portion 3 interferes with the tightening,
The handpiece 10 with the auxiliary tool 1 removed or a separate handpiece without the auxiliary tool 1 is in charge.

【００３０】本発明では、補助具の装着部がハンドピー
ス１０のネック１７（首）（図３参照）を把持するよう
にしたり、あるいは装着部がヘッド１０’のキャップ１
６（図３参照）によって挟持されて固定されるようにす
る等、装着の態様は以上の実施例に限定されるものでは
い。In the present invention, the mounting portion of the auxiliary tool is designed to grip the neck 17 (neck) (see FIG. 3) of the handpiece 10, or the mounting portion of the cap 1 of the head 10 '.
The mode of mounting is not limited to the above embodiment, such as being sandwiched and fixed by 6 (see FIG. 3).

【００３１】更に、スクリュードライバーがスクリュー
締付補助具１のように機能する補助部材を一体に備えて
いてもよく、この場合、確実にスクリュー３０を支持さ
せるため、補助部材においてフォーク部３に相当する部
位は微調整可能とされる。Further, the screw driver may integrally include an auxiliary member that functions like the screw tightening auxiliary tool 1. In this case, in order to surely support the screw 30, the auxiliary member corresponds to the fork portion 3. The part to be adjusted can be finely adjusted.

【００３２】[0032]

【発明の効果】以上に述べたように、本発明に係るスク
リュードライバーでは、補助部材によってドライバー先
との間でスクリューを支持することができるため、口腔
内等の狭い患部に対しても従来のように患部を大きく切
開する必要がなく口腔内からプレートの締付けを行うこ
とができ、この際、スクリューの落下やこれに続く食道
や気管内ヘの進入等の二次災害の発生も確実に防ぐこと
ができる。As described above, in the screw driver according to the present invention, since the screw can be supported between the driver tip and the auxiliary member by the auxiliary member, the conventional screw screw can be used even in a narrow affected area such as the oral cavity. It is possible to tighten the plate from the oral cavity without making a large incision in the affected area like this, and at this time, surely prevent the occurrence of secondary disasters such as falling of the screw and subsequent entry into the esophagus and trachea. be able to.

【００３３】また、鉗子を用いることなく片手だけの操
作で済むため、視野も広く取ることができる等手術が容
易となる。Further, since the operation can be performed with only one hand without using forceps, the field of view can be widened and the operation is facilitated.

【００３４】以上の効果は、本発明に係るスクリュー締
付補助具をスクリュードライバーに用いることにより同
様に得られる。The above effects can be similarly obtained by using the screw tightening auxiliary tool according to the present invention in a screw driver.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明のスクリュー締付補助具を示す斜視図で
ある。FIG. 1 is a perspective view showing a screw tightening auxiliary tool of the present invention.

【図２】図１をＡ方向から見た平面図である。FIG. 2 is a plan view of FIG. 1 viewed from the A direction.

【図３】スクリュー締付補助具をハンドピースヘッドに
装着した状態を示す破断斜視図である。FIG. 3 is a cutaway perspective view showing a state in which a screw tightening auxiliary tool is attached to a handpiece head.

【図４】ハンドピースヘッドを示す破断断面図である。FIG. 4 is a cutaway sectional view showing a handpiece head.

【図５】ドライバー先を示す斜視図である。FIG. 5 is a perspective view showing a driver tip.

【図６】スクリューを示す斜視図である。FIG. 6 is a perspective view showing a screw.

【図７】スクリューの支持状態を示す破断正面図であ
る。FIG. 7 is a cutaway front view showing a supported state of a screw.

【符号の説明】[Explanation of symbols]

１ スクリュー締付補助具 ２ 装着部 ２’ 把持片 ３ 支持部 ３’ フォーク部 １０ ハンドピース １０’ ヘッド １０” 前端部 １１ バーチューブ １６ キャップ １７ ネック（首） ２０ ドライバー先 ２１ 凸部 ３０ スクリュー ３１ 頭部 ３１’ （−）スリット 1 Screw Tightening Aid 2 Mounting Part 2'Grip Piece 3 Support Part 3'Fork Part 10 Handpiece 10 'Head 10 "Front End Part 11 Bar Tube 16 Cap 17 Neck (Neck) 20 Driver Tip 21 Convex Part 30 Screw 31 Head Part 31 '(-) slit

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 骨接合プレートの固定に供するスクリュ
ーをドライバー先を介して締め付けるスクリュードライ
バーにおいて、前記スクリューの頭部と前記ドライバー
先の先端部とを係合させた際、前記頭部を下方から支持
して当該スクリューの落下を防止する補助部材を備える
ことを特徴とするスクリュードライバー。1. A screwdriver for tightening a screw used for fixing an osteosynthesis plate via a driver tip, and when the head portion of the screw is engaged with the tip end portion of the driver tip, the head portion is pushed from below. A screw driver comprising an auxiliary member that supports and prevents the screw from falling. 【請求項２】 前記補助部材が着脱自在のものである請
求項１に記載のスクリュードライバー。2. The screw driver according to claim 1, wherein the auxiliary member is detachable. 【請求項３】 骨接合プレートの固定に供するスクリュ
ーをドライバー先を介して締め付けるスクリュードライ
バーに用いる補助具であって、前記スクリュードライバ
ーの所定部位に着脱自在に取り付けるための装着部と、
前記スクリューの頭部と前記ドライバー先の先端部とを
係合させた際、当該頭部を下方から支持する支持部とを
有することを特徴とするスクリュー締付補助具。3. An auxiliary tool used as a screw driver for tightening a screw for fixing an osteosynthesis plate via a driver tip, and a mounting portion for detachably mounting the screw driver at a predetermined portion of the screw driver.
A screw tightening auxiliary tool, comprising: a support portion that supports the head portion from below when the head portion of the screw is engaged with the tip end portion of the driver tip.
JP7232828A 1995-09-11 1995-09-11 Screw tightening aid Expired - Fee Related JP2897116B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7232828A JP2897116B2 (en) 1995-09-11 1995-09-11 Screw tightening aid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7232828A JP2897116B2 (en) 1995-09-11 1995-09-11 Screw tightening aid

Publications (2)

Publication Number Publication Date
JPH0975374A true JPH0975374A (en) 1997-03-25
JP2897116B2 JP2897116B2 (en) 1999-05-31

Family

ID=16945429

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7232828A Expired - Fee Related JP2897116B2 (en) 1995-09-11 1995-09-11 Screw tightening aid

Country Status (1)

Country Link
JP (1) JP2897116B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007519479A (en) * 2004-01-30 2007-07-19 ウォーソー・オーソペディック・インコーポレーテッド Anatomical implants and surgical procedures designed to minimize instrumentation
EP1996083A2 (en) * 2006-03-22 2008-12-03 C2M Medical, Inc. Bone anchor installer and method of use
US9445805B2 (en) 2009-11-16 2016-09-20 Tornier, Inc. Bone implant with convertible suture attachment
US10016192B2 (en) 2013-06-14 2018-07-10 Tornier, Inc. Suture for connecting a human or animal tissue, soft anchor and method for attaching a tissue to a bone
KR20200098746A (en) * 2019-02-11 2020-08-21 주식회사 제일메디칼코퍼레이션 Contra-angle handpiece

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007519479A (en) * 2004-01-30 2007-07-19 ウォーソー・オーソペディック・インコーポレーテッド Anatomical implants and surgical procedures designed to minimize instrumentation
EP1996083A2 (en) * 2006-03-22 2008-12-03 C2M Medical, Inc. Bone anchor installer and method of use
US9539001B2 (en) 2006-03-22 2017-01-10 Tornier, Inc. Bone anchor installer and method of use
US9445805B2 (en) 2009-11-16 2016-09-20 Tornier, Inc. Bone implant with convertible suture attachment
US10736619B2 (en) 2009-11-16 2020-08-11 Tornier, Inc. Bone implant with convertible suture attachment
US10016192B2 (en) 2013-06-14 2018-07-10 Tornier, Inc. Suture for connecting a human or animal tissue, soft anchor and method for attaching a tissue to a bone
US11083449B2 (en) 2013-06-14 2021-08-10 Howmedica Osteonics Corp. Suture for connecting a human or animal tissue, soft anchor and method for attaching a tissue to a bone
KR20200098746A (en) * 2019-02-11 2020-08-21 주식회사 제일메디칼코퍼레이션 Contra-angle handpiece

Also Published As

Publication number Publication date
JP2897116B2 (en) 1999-05-31

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